Canadian photographer Richard Gottardo recently spent 7 hours in Southern Alberta, capturing the remarkable color changes displayed by the northern lights, or the aurora borealis, which were seen over the Rocky Mountains. The aurorae, from the Latin word for “sunrise,”…

On Sunday, September 22, the earth’s Northern Hemisphere will move into fall and the Southern Hemisphere will move into spring. The celestial shift that prompts this transition is called an equinox, which happens biannually, around March 21 and September 21.…